Improvement in apparatus for drawing retorts



W. FOULIS.-

APPARATUS Fon DRAWING REToATs. No.177,327; Patented M5116, 187e,

coke

N-PETERS, PHDTO-UTHOGRAPNER. WASHINGTON. vil C.

UNITED STATES PATENT Orri:cie.w A

lwiLLiAi/r Fo'ULIsoF eLAgsGow, NORTH BRITAIN.

' IMPROVEMENT IN APPARATUS'FO-.R DRAWING RETORTS.

specification forming part of Letters Patent No.` 177,327, dated-May 16, 1816; application filed i I September 1, 1875. i

- charges from gas-retorts 5 and the nature thereof consists in certain improvements in the construction .of the same, and novel combina- -tions of parts, hereinafter` shown and described.

On the sheet of drawings hereunto appended, Figure l is a side elevation, Fig. 2 a plan,

and Fig. 3 an elevation, of the rear end of the retort-drawing machine, as constructed in accordance with my said improvements.

As shown by these figures, the apparatus consists of a framing, A, carried on wheels B, a pair of which are placed on the same shaft or axis (J, on which are also situated, loosely, two bevel-wheels, D, and la clutch, E, which slides on a feather on the shaft C, and is alternately geared with the clutch-boxes of the bevel-wheels D, by operating the lever F, A bevel-pinion, a, placed on a cross-shaft, b, is geared with the bevel-wheels D, and the pinion a is caused to traverse the machine along the rails G, and in front of the retorts, by means of the hydraulic cylinderH and rack c, which latter gears into-a spur-pinion placed on the shaft b. By placing two bevel-wheels, D, on the shaft C, and alternately gearing .them to the said shaft by clutch mechanism ot'a well-known class, both strokes of the piston of the hydraulic cylinderH may be utilized in trav'- ersing the drawing-machine continuously in the saine direction. The hydraulic cylinder I, to the rod of which the rake J is attached, is suspended from one end of a chain, d, as shown. From the cylinder the chain passes upward, over a pulley, K, situate at the Lipper end of the framing A, and thence to a drum, L, to which it is attached, 0n a shaft, c, carried by the framing A, and by a bracket, M. The chain is wound on or unwound from the drum L accordingly as it is desired to raise or lower the drawing mechanism to the level of any retort in a series, by actuating the tangentscrew O, gearing into the worm-wheel N on The tangent-screw O is rotated u the shaft e. by a hand-wheel or by spokes placed on the screw-shaft at P. At the rearward end ofthe.

hydraulic cylinder I a double piston-valve is placedas shown at Figs. 1,2, and 3, the valve being also illustrated in detail, partly in longif rangement consists` of a chest, fry', formed on or attached to the rake-cylinder I, and divided longitudinally by a diaphragm orweb, s.' In the upper compartment of the chest r the double pistoirvalve t is placed, and theouter end of. the valve-spindle t is connected to a lever, R, as shown. The branch a communif eates with the pipe a, through which water under pressure is conducted to the retortdrawing apparatus, and the branches@ and w of the valve-chest communicate with the pipes t' and It leading to the forward and backward ends, respectively, of the cylinder I.

By operating the lever R toward the front or rear of the machine, the piston-valve t is brought into position to supply water under pressure through the branches 'v and wand pipes t' 7c to either the forward or rear end of the cylinder I, it being understood that into whichscever end of the cylinder I the water is heilig passed, water is exhausting or pass ing lout from the opposite end through the ports a', which communicate with the lower chamber of the chest rf, from whence the water passes off through the branch y into the' box or chamber Z, and is discharged therefrom either through the spout X, or itmay be conducted through the pipe 1', and discharged from the front end thereof onto the material (coke) drawn from the retorts, and sc damp out the heat from them. The lever R is formed with a short` arm, to which one end of a chain, V, is attacheihthe opposite end whereof is fixed to the framing A of the machine, or it may be carried round a pulley supported in the framing, and attached.l to the cylinder I. By this means when the lever R is moved backward so as to admit water to the rearward end of the cylinder I, and so push the .rake J into the retort, the rearward end of the cylinder `is atthesame time depressedo'l that the `rake in moving forwardenters zthei retort above the charge otmateral contained therein. Similarly when the lever R is moved forward the rearward end of 'the cylinder I is elevated, thereby lowering the rake J into the 'materiah and water `being :at the samectime@ admitted to the forward end of the cylinder through the pipet, the rake J, together withl the charge ofthe material, is withdrawnlfrom the retort. Water under pressure is admitted to the forward and rearward ends of the c I- inder E, to move the `aplmratus along the rails G through a pipe, (not shown on the drawingsgV but in conjunctiouwith which a double pistonvalve, similar to that hereinbefore described and shown at Figswet and 5, is or `may he pro vided, or in lieuofthe .piston-valve aitwo-way cock may be employed. The Water exhaustin g from the cylinder H is `conducted throughla;`

pipe to the hoxvorchamber Z; and discharfsetl,`

through thc-spout X, Iusteadzotattachug they chaind, fro m'fwhich the cylinder-I; is suspended,

, to a drum, L, as showmthe said chain :may

be attached to .a weight `or weights, and iin lieu of operatingfit by a wheel and tangenty f.

screw, a. hydraulic` cylinder, rack and pinion, or `other equivalent mechanism :maybecm1` ployed for `that purpose; Aand,fm-ther, instead i ofemploying` water under `{hiess-ureto operate 1 the pistons. in `the cylinders. of `the drawing- L machine, as hereinbefore deseri-bed,. steam, f

compressed ah', or gas may he adopted. itu lieu u l i, i thereof, it being understood that I do not con" fine myself to` the meot' water, nor tom-range` and construct 'thedrawingfmahinc Hprecisely" in the manner illustrated on theappended drawings, ras the same is capable of considervable modification without departing from the YIclaim L 1. The .mechanism whereby the hydraulic j cylinder H` may be rutlizedin"traversing the 'j machine continuously in `one direction,` con-` sisting of the wheels B, shaft C, bevel-wheels D, `clutch E, hevelfpfmiion ia, ica-s shaftwb pro-t -vded with a spur-pinion, and hydraulic cyl-` inder H provided with a rack, e, combinedas and for the purposes described.

J is attached, Apijpeirt"` and;

chest In testimony whereof` Ihawe-lsigned l 1, name-to this speccatnyiu ,the ,presmnceiof`` two subscribing witnt` A 4WILLIAM FOULIS.` Witnesses:

GEORGE Minimums.' aumsrmux,

JOHN MAGMSH. 

